Charts and tables have two aspects that need addressing in making them accessible - table headers, and table captions or summaries.
To meet accessibility standards all charts and graphs must be presented with the corresponding data in standard HTML table format. LecShare does this for you. LecShare also converts tables created in PowerPoint to standard HTML tables.
In addition, all tables must be encoded to indicate if any of the rows or columns are headers, or in other words, are there any labels for the data. Charts and graphs created in PowerPoint or Excel will always have one row and column header and LecShare Pro will automatically assign those for you. Tables created in PowerPoint may have more than one row or column of headers and these will need to be marked as such by the user.
Marking certain rows or columns as headers allows people using screen readers an easy way to determine what the labels are for any cell in a table. LecShare Pro allows you to easily indicate if a particular table has row or column headers, and how many of each. LecShare Pro saves this information. You can also edit the row and column headers for charts and graphs, but this information is not saved once you quit LecShare.
Note - charts created in Microsoft Excel automatically have a single row and column header assigned to them.
All tables must also have a caption or a summary associated with it. The caption should be a brief description (a few words) of the table. The summary is a way to provide a longer description of the table. The technical difference between the two is that the caption will be visible on the page, while the summary is encoded in the page and not seen. Keep in mind that in LecShare Pro's output, neither the caption nor the summary are actually seen in the default view. They are both "hidden" in the code.
Only one of the fields needs to be used, although both the caption and summary may be used on the same table. Use the field which seems appropriate for your task.